local res = redis.call('mget',KEYS[1],KEYS[2],KEYS[3])
if(res[1] == false) then
    res[1] = 1
end
if(res[2] == false) then
    res[2] = 2
end
if(res[3] == false) then
    res[3] = 3
end
return res
--[[
返回list时最好用List<Object>接收,在java中做转换，否则容易出错
]]
